populations的例句（populations在句子中的用法）

• Nonexposure of susceptible plant populations to their pathogens is fairly common. 感病的植物群体不暴露在它们的病原之下,这是相当普遍的.
• Periodic local catastrophes reduce populations. 周期性的局部地区的灾变降低了种群的数量.
• The results show that rarer variants are distributed more unevenly among populations. 本研究结果显示:越罕见的变体,其在人群中的分布也越不均衡.
• Mutual competition and mutual dependence relations coexisted among all the microbe populations. 这些微生物之间存在着相互竞争、相互依存关系.
• During the transience the electron and photon populations deviate slightly from their equilibrium values respectively. 在瞬态过程中,电子和光子的密度各稍微偏离其平衡值.
• Fish populations assume highly localized distributions within each river. 鱼群分布集中在每条河的某些区域.
• Gene flow The movement of alleles within and between populations of the same species through interbreeding. 基因流动:同一种群内由于杂交或种内选择使某一等位基因在该种群内扩散.
• Leaving some fields fallow provided a natural check on insect populations. 让一些土地休耕是自然控制昆虫数量的办法.
• Populations tend to grow at an exponential rate. 人口趋向于以指数比率增长.
• DEG in toothpaste has a low but meaningful risk of toxicity and injury to these populations. DEG在牙膏中含量低但长期毒性和损伤给这些人带来了危险.
• Under normal environmental conditions, Daphnia populations are exclusively female and reproduction is clonal. 在正常环境条件下, 水蚤均为雌性并且采取无性繁殖.
• In Caucasian populations, about 1 in every 87 deliveries is a twin birth. 在白人人群中, 大约每87个分娩中就有一对双生婴儿.
• The ethnic populations are so intermingled that there's bound to be conflict. 各民族人口如此杂居，肯定会发生冲突。
• Populations of Bantu - language speakers who live in southern Africa today are far darker than the Khoisan. 现在在南非,说班图话的族群,比郭依桑人黑多了.
• Clonal populations from individual stem cells could form neuron - , astrocyte -, and adipocyte - like cells upon inducted differentiation. 自单个干细胞而来的细胞克隆在不同条件诱导下可以形成神经元样 、 胶质样及脂肪样细胞.
• Anatabine was significantly and positively correlated with anabasine in both populations. 新烟草碱与假木贼碱在两个群体中均显著正相关.
• The present paper reports the chromosome numbers and karyotypes of 9 populations of Allium przewalskianum ( Liliaceae ). 本文研究了青海葱属青甘 韭 9个居群的染色体数目和核型.
• History is replete with examples of populations out of control. 历史上人口失控的例子比比皆是。
• The Croatian town of Ilok is a classic case of shifting populations. 伊洛卡的克罗地亚小镇就是人口不停流动的典型例子。
• ...Malthus's theories about the ineluctable tendency of populations to exceed resources. 马尔萨斯的人口增长会不可避免地超出资源承载限度的理论